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arXiv · 1402.0680

Evolution of the longitudinal structure function at small x

G. R. Boroun
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Abstract

We derive an approximation approach to evolution of the longitudinal structure function, by using a Laplace-transform method. We solve the master equation and derive the longitudinal structure function as a function of the initial condition $F_{L}(x,Q^{2}_{0})$ at small x. Our results are independent of the longitudinal coefficient functions and extend from the leading order (LO) up to next-to-next-to-leading order (NNLO). The comparisons with H1 data and other parameterizations are made and results show that they are in agreement with H1 data and some phenomenological models.

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G. R. Boroun. 2014-02-04. Evolution of the longitudinal structure function at small x. https://doi.org/10.1140/epjp/i2014-14019-1

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